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调查了鞍钢8.3t钢锭头部使用保护渣浇注时的碳偏析情况:在实验室研究了熔融保护渣碳的饱和含量及其影响因素;熔渣-钢液间、碳粉-熔渣-钢液间平衡增碳研究,从而对使用保护渣浇注时钢锭头部的增碳机理提出了初步的看法:由于钢锭头部熔渣的含碳量很低(0.10％—0.20％),所以在浇注中保持足够的熔渣层不致于引起头部增碳。
The segregation of carbon during the pouring of mold powder in the head of 8.3t steel ingot in Ansteel was investigated. The saturated carbon content and its influencing factors of the molten mold flux were studied in the laboratory. The slag - liquid steel, carbon powder - molten slag - Therefore, the initial carbonaceous mechanism of ingot head when casting with mold powder is proposed: Since the carbon content of the ingot head slag is very low (0.10% -0.20%), during pouring Keep enough slag layer will not cause the head carbon.